Thursday, March 30, 2006

Jon's MENSA Question of the Day

Your brother is color blind and, since he has four different colors of socks in his drawer, he usually just pulls out the first two and wears a mismatched pair. He has blue, brown, black, and blue-and-white-striped socks in the drawer in the ratio of 8 blue to 6 brown, to 6 black, to 8 blue-and-white. How many socks would he have to pull out before he could be certain of having a matched pair?